1A Low Dropout Regulator - LM2940QML-SP

LM2940QML-SP (正在供货)

1A Low Dropout Regulator

 

描述

The LM2940 positive voltage regulator features the ability to source 1A of output current with a dropout voltage of typically 0.5V and a maximum of 1V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3V. The quiescent current with 1A of output current and an input-output differential of 5V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3V).

Designed also for vehicular applications, the LM2940 and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940 cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

特性

  • Available with Radiation Ensure
    • ELDRS Free 100 krad(Si)
  • Dropout Voltage Typically 0.5V @IO = 1A
  • Output Current in Excess of 1A
  • Output Voltage Trimmed Before Assembly
  • Reverse Battery Protection
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection

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参数 与其它产品相比 线性稳压器 (LDO)

 
Output Options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Fixed Output Options (V)
Package Group
Additional Features
Operating Temperature Range (C)
Noise (uVrms)
Rating
Output Capacitor Type
PSRR @ 100KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package Size: mm2:W x L (PKG)
LM2940QML-SP LM117HVQML-SP LM117QML-SP LM2941QML-SP
Fixed Output    Adjustable Output    Adjustable Output    Adjustable Output   
1    1.5    1.5    1   
26    60    40    26   
6    4.2    4.2    6   
5    1.25    1.3    20   
5    1.25    1.25    5   
5      1.8
2.5
2.85
3.3
5   
 
CFP    CFP
TO   
CFP
TO
TO   
CFP   
Overcurrent Protection
Thermal Shutdown   
Overcurrent Protection
Thermal Shutdown   
Overcurrent Protection
Thermal Shutdown   
Enable
Overcurrent Protection
Thermal Shutdown   
-55 to 125    -55 to 125    -55 to 125    -55 to 125   
350      120     
Space    Space    Space    Space   
Non-Ceramic    Non-Ceramic
Cap Free   
Non-Ceramic
Cap Free   
 
50    40      67   
5    4    0.3    5   
500    1500    1500    800   
10    5    5    10   
See datasheet (CFP)    See datasheet (CFP)
3TO: 92 mm2: 9.14 x 10.03(TO)   
See datasheet (CFP)
3TO: 92 mm2: 9.14 x 10.03(TO)
2TO: 989 mm2: 25.4 x 38.938(TO)   
See datasheet (CFP)   

其它合格版本 LM2940QML-SP

版本 器件型号 定义
军事应用 LM2940QML 获 QML 认证,用于军事与国防应用